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Hi, yes doubles, and there may be space between the tanks & battery box. Appreciate the suggestion.
John

I wouldn't place fuel anywhere near the batteries. Have you seen what a loose battery cable can do to steel let alone adding fuel to the mix? I have... not pretty! I understand the propane is right there as well. I'm not terribly enthused about that myself. I just wouldn't add more flammable materials to the battery area.

rjohnla, We own a KZ as well (Spree). Not the greatest for exterior storage so I am going to install a trailer tongue box in the space behind the propane tanks. I bought a tongue box made by Northern Tool and the angles of the sides are almost identical to the angles of the A-frame. I would think that you could put a couple of gas cans in one of these.

I would definitely not put gas cans in the pass-through and I wouldn't think a generator is a good idea in case it leaks

The tongue box necessitates moving our battery (only one in our case) to another location. After a lot of thought, I made a spot for the battery in the pass-through. We have a fiberglass cap and it turned out there was a lot of available space just behind the cap. I ended up building some additional storage behind the cap across the entire width of the trailer as well. Since the cap is curved, that is where I found more space for the battery. I'm currently waiting for a sealed battery box to arrive. There are other spots you could probably find for a battery and you can always go to a sealed AGM battery.

If you were to relocate your battery, you could also make up a custom platform to hold gas tanks.

One thing I would be thinking about in anything like this in adding weight or transferring it around is what happens to your tongue weight. The actual tongue weight on our KZ Spree is surprisingly higher than expected. It's over 14 % of the TT weight and came in at 960 lbs vs the factory listed 518 lbs. A couple of cans of gas plus a generator could potentially upset the weight distribution and tongue weight. I would really like to move some weight to the rear of our Spree but it's not really feasible. I wouldn't consider gas cans and gen. in our TT simply for weight reasons. And it turns out that our scaled TT weight is 200 lbs under the GVWR. Really no room for anything heavy anyway....

Hi myredracer, Thanks for the detailed response and pics., much appreciated. I like what you've done with the pass through, you're more handy than me but gives me ideas. Hope you are enjoying your KZ, think the quality is great for the price. Mine is a 202S. The UVW of the various models varies a bit in the 20X models, the 202S UWV is 3050, with NCC of 1450 according to KZ. So, I bought a Yahama 2400 @ 80 lbs. (also have 200 w solar and inverter) + spare 12v wet battery - redundancy for dry camping. I just have to keep an eye on the weight. Think I'll take it to Pilot and weigh it, want to be under GVWR of 4500 (some say can go to 5000 easily, other's say no). So, may be removing some stuff that is nice but not essential. Default is to siphon some from 20 gal. tow vehicle. Thanks again, Enjoy! John